diff --git a/App/Commands/Account.swift b/App/Commands/Account.swift
index c2d8ef7..d8d6e1a 100644
--- a/App/Commands/Account.swift
+++ b/App/Commands/Account.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import StoreFoundation
 
-struct AccountCommand: CommandProtocol {
-    typealias Options = NoOptions<MASError>
-    let verb = "account"
-    let function = "Prints the primary account Apple ID"
+public struct AccountCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "account"
+    public let function = "Prints the primary account Apple ID"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         if let account = ISStoreAccount.primaryAccount {
             print(String(describing: account.identifier))
         }
diff --git a/App/Commands/Info.swift b/App/Commands/Info.swift
index 170d698..64fdeb7 100644
--- a/App/Commands/Info.swift
+++ b/App/Commands/Info.swift
@@ -10,11 +10,13 @@ import Commandant
 import Result
 import Foundation
 
-struct InfoCommand: CommandProtocol {
-    let verb = "info"
-    let function = "Display app information from the Mac App Store"
+public struct InfoCommand: CommandProtocol {
+    public let verb = "info"
+    public let function = "Display app information from the Mac App Store"
 
-    func run(_ options: InfoOptions) -> Result<(), MASError> {
+    public init() {}
+
+    public func run(_ options: InfoOptions) -> Result<(), MASError> {
         guard let infoURLString = infoURLString(options.appId),
             let searchJson = URLSession.requestSynchronousJSONWithURLString(infoURLString) as? [String: Any] else {
                 return .failure(.searchFailed)
@@ -40,21 +42,20 @@ struct InfoCommand: CommandProtocol {
     }
 }
 
-struct InfoOptions: OptionsProtocol {
+public struct InfoOptions: OptionsProtocol {
     let appId: String
 
     static func create(_ appId: String) -> InfoOptions {
         return InfoOptions(appId: appId)
     }
 
-    static func evaluate(_ m: CommandMode) -> Result<InfoOptions, CommandantError<MASError>> {
+    public static func evaluate(_ m: CommandMode) -> Result<InfoOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(usage: "the app id to show info")
     }
 }
 
 private struct AppInfoFormatter {
-
     private enum Keys {
         static let Name = "trackCensoredName"
         static let Version = "version"
diff --git a/App/Commands/Install.swift b/App/Commands/Install.swift
index c5187a6..425dcd7 100644
--- a/App/Commands/Install.swift
+++ b/App/Commands/Install.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import CommerceKit
 
-struct InstallCommand: CommandProtocol {
-    typealias Options = InstallOptions
-    let verb = "install"
-    let function = "Install from the Mac App Store"
+public struct InstallCommand: CommandProtocol {
+    public typealias Options = InstallOptions
+    public let verb = "install"
+    public let function = "Install from the Mac App Store"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         // Try to download applications with given identifiers and collect results
         let downloadResults = options.appIds.compactMap { (appId) -> MASError? in
             if let product = installedApp(appId) , !options.forceInstall {
@@ -44,17 +46,17 @@ struct InstallCommand: CommandProtocol {
     }
 }
 
-struct InstallOptions: OptionsProtocol {
+public struct InstallOptions: OptionsProtocol {
     let appIds: [UInt64]
     let forceInstall: Bool
-    
-    static func create(_ appIds: [Int]) -> (_ forceInstall: Bool) -> InstallOptions {
+
+    public static func create(_ appIds: [Int]) -> (_ forceInstall: Bool) -> InstallOptions {
         return { forceInstall in
             return InstallOptions(appIds: appIds.map{UInt64($0)}, forceInstall: forceInstall)
         }
     }
-    
-    static func evaluate(_ m: CommandMode) -> Result<InstallOptions, CommandantError<MASError>> {
+
+    public static func evaluate(_ m: CommandMode) -> Result<InstallOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(usage: "app ID(s) to install")
             <*> m <| Switch(flag: nil, key: "force", usage: "force reinstall")
diff --git a/App/Commands/List.swift b/App/Commands/List.swift
index 760d47a..4d5ea7a 100644
--- a/App/Commands/List.swift
+++ b/App/Commands/List.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import CommerceKit
 
-struct ListCommand: CommandProtocol {
-    typealias Options = NoOptions<MASError>
-    let verb = "list"
-    let function = "Lists apps from the Mac App Store which are currently installed"
-    
-    func run(_ options: Options) -> Result<(), MASError> {
+public struct ListCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "list"
+    public let function = "Lists apps from the Mac App Store which are currently installed"
+
+    public init() {}
+
+    public func run(_ options: Options) -> Result<(), MASError> {
         let softwareMap = CKSoftwareMap.shared()
         guard let products = softwareMap.allProducts() else {
             print("No installed apps found")
diff --git a/App/Commands/Lucky.swift b/App/Commands/Lucky.swift
index 7da584e..9b7ef20 100644
--- a/App/Commands/Lucky.swift
+++ b/App/Commands/Lucky.swift
@@ -11,12 +11,14 @@ import Result
 
 import CommerceKit
 
-struct LuckyCommand: CommandProtocol {
-    typealias Options = LuckyOptions
-    let verb = "lucky"
-    let function = "Install the first result from the Mac App Store"
+public struct LuckyCommand: CommandProtocol {
+    public typealias Options = LuckyOptions
+    public let verb = "lucky"
+    public let function = "Install the first result from the Mac App Store"
 
-    func run(_ options: Options) -> Result<(), MASError> {
+    public init() {}
+
+    public func run(_ options: Options) -> Result<(), MASError> {
 
         guard let searchURLString = searchURLString(options.appName),
               let searchJson = URLSession.requestSynchronousJSONWithURLString(searchURLString) as? [String: Any] else {
@@ -71,20 +73,19 @@ struct LuckyCommand: CommandProtocol {
     }
 }
 
-struct LuckyOptions: OptionsProtocol {
+public struct LuckyOptions: OptionsProtocol {
     let appName: String
     let forceInstall: Bool
-    
-    static func create(_ appName: String) -> (_ forceInstall: Bool) -> LuckyOptions {
+
+    public static func create(_ appName: String) -> (_ forceInstall: Bool) -> LuckyOptions {
         return { forceInstall in
             return LuckyOptions(appName: appName, forceInstall: forceInstall)
         }
     }
-    
-    static func evaluate(_ m: CommandMode) -> Result<LuckyOptions, CommandantError<MASError>> {
+
+    public static func evaluate(_ m: CommandMode) -> Result<LuckyOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(usage: "the app name to install")
             <*> m <| Switch(flag: nil, key: "force", usage: "force reinstall")
     }
-
 }
diff --git a/App/Commands/Outdated.swift b/App/Commands/Outdated.swift
index 6641370..c6d5564 100644
--- a/App/Commands/Outdated.swift
+++ b/App/Commands/Outdated.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import CommerceKit
 
-struct OutdatedCommand: CommandProtocol {
-    typealias Options = NoOptions<MASError>
-    let verb = "outdated"
-    let function = "Lists pending updates from the Mac App Store"
+public struct OutdatedCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "outdated"
+    public let function = "Lists pending updates from the Mac App Store"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         let updateController = CKUpdateController.shared()
         let updates = updateController?.availableUpdates()
         let softwareMap = CKSoftwareMap.shared()
diff --git a/App/Commands/Reset.swift b/App/Commands/Reset.swift
index 375b61a..340879d 100644
--- a/App/Commands/Reset.swift
+++ b/App/Commands/Reset.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import CommerceKit
 
-struct ResetCommand: CommandProtocol {
-    typealias Options = ResetOptions
-    let verb = "reset"
-    let function = "Resets the Mac App Store"
+public struct ResetCommand: CommandProtocol {
+    public typealias Options = ResetOptions
+    public let verb = "reset"
+    public let function = "Resets the Mac App Store"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         /*
         The "Reset Application" command in the Mac App Store debug menu performs
         the following steps
@@ -71,19 +73,19 @@ struct ResetCommand: CommandProtocol {
                 }
             }
         }
-        
+
         return .success(())
     }
 }
 
-struct ResetOptions: OptionsProtocol {
+public struct ResetOptions: OptionsProtocol {
     let debug: Bool
-    
-    static func create(debug: Bool) -> ResetOptions {
+
+    public static func create(debug: Bool) -> ResetOptions {
         return ResetOptions(debug: debug)
     }
-    
-    static func evaluate(_ m: CommandMode) -> Result<ResetOptions, CommandantError<MASError>> {
+
+    public static func evaluate(_ m: CommandMode) -> Result<ResetOptions, CommandantError<MASError>> {
         return create
             <*> m <| Switch(flag: nil, key: "debug", usage: "Enable debug mode")
     }
diff --git a/App/Commands/Search.swift b/App/Commands/Search.swift
index ed7cf19..ffafbab 100644
--- a/App/Commands/Search.swift
+++ b/App/Commands/Search.swift
@@ -18,12 +18,14 @@ struct ResultKeys {
     static let Price = "price"
 }
 
-struct SearchCommand: CommandProtocol {
-    typealias Options = SearchOptions
-    let verb = "search"
-    let function = "Search for apps from the Mac App Store"
+public struct SearchCommand: CommandProtocol {
+    public typealias Options = SearchOptions
+    public let verb = "search"
+    public let function = "Search for apps from the Mac App Store"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         
         guard let searchURLString = searchURLString(options.appName),
               let searchJson = URLSession.requestSynchronousJSONWithURLString(searchURLString) as? [String: Any] else {
@@ -77,17 +79,17 @@ struct SearchCommand: CommandProtocol {
     }
 }
 
-struct SearchOptions: OptionsProtocol {
+public struct SearchOptions: OptionsProtocol {
     let appName: String
     let price: Bool
-    
-    static func create(_ appName: String) -> (_ price: Bool) -> SearchOptions {
+
+    public static func create(_ appName: String) -> (_ price: Bool) -> SearchOptions {
         return { price in
             SearchOptions(appName: appName, price: price)
         }
     }
-    
-    static func evaluate(_ m: CommandMode) -> Result<SearchOptions, CommandantError<MASError>> {
+
+    public static func evaluate(_ m: CommandMode) -> Result<SearchOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(usage: "the app name to search")
             <*> m <| Option(key: "price", defaultValue: false, usage: "Show price of found apps")
diff --git a/App/Commands/SignIn.swift b/App/Commands/SignIn.swift
index 0ddc93f..fc89f4f 100644
--- a/App/Commands/SignIn.swift
+++ b/App/Commands/SignIn.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import StoreFoundation
 
-struct SignInCommand: CommandProtocol {
-    typealias Options = SignInOptions
-    let verb = "signin"
-    let function = "Sign in to the Mac App Store"
+public struct SignInCommand: CommandProtocol {
+    public typealias Options = SignInOptions
+    public let verb = "signin"
+    public let function = "Sign in to the Mac App Store"
 
-    func run(_ options: Options) -> Result<(), MASError> {
+    public init() {}
+
+    public func run(_ options: Options) -> Result<(), MASError> {
 
         if #available(macOS 10.13, *) {
             return .failure(.signInDisabled)
@@ -44,13 +46,13 @@ struct SignInCommand: CommandProtocol {
     }
 }
 
-struct SignInOptions: OptionsProtocol {
+public struct SignInOptions: OptionsProtocol {
     let username: String
     let password: String
 
     let dialog: Bool
 
-    typealias ClientError = MASError
+    public typealias ClientError = MASError
 
     static func create(username: String) -> (_ password: String) -> (_ dialog: Bool) -> SignInOptions {
         return { password in { dialog in
@@ -58,7 +60,7 @@ struct SignInOptions: OptionsProtocol {
         }}
     }
 
-    static func evaluate(_ m: CommandMode) -> Result<SignInOptions, CommandantError<MASError>> {
+    public static func evaluate(_ m: CommandMode) -> Result<SignInOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(usage: "Apple ID")
             <*> m <| Argument(defaultValue: "", usage: "Password")
diff --git a/App/Commands/SignOut.swift b/App/Commands/SignOut.swift
index 30b8c41..03d5458 100644
--- a/App/Commands/SignOut.swift
+++ b/App/Commands/SignOut.swift
@@ -10,12 +10,14 @@ import Commandant
 import Result
 import CommerceKit
 
-struct SignOutCommand: CommandProtocol {
-    typealias Options = NoOptions<MASError>
-    let verb = "signout"
-    let function = "Sign out of the Mac App Store"
+public struct SignOutCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "signout"
+    public let function = "Sign out of the Mac App Store"
+
+    public init() {}
     
-    func run(_ options: Options) -> Result<(), MASError> {
+    public func run(_ options: Options) -> Result<(), MASError> {
         if #available(macOS 10.13, *) {
             let accountService: ISAccountService = ISServiceProxy.genericShared().accountService
             accountService.signOut()
diff --git a/App/Commands/Upgrade.swift b/App/Commands/Upgrade.swift
index 98cbe7e..bdd26ad 100644
--- a/App/Commands/Upgrade.swift
+++ b/App/Commands/Upgrade.swift
@@ -10,14 +10,16 @@ import Commandant
 import Result
 import CommerceKit
 
-struct UpgradeCommand: CommandProtocol {
-    typealias Options = UpgradeOptions
-    let verb = "upgrade"
-    let function = "Upgrade outdated apps from the Mac App Store"
-    
-    func run(_ options: Options) -> Result<(), MASError> {
+public struct UpgradeCommand: CommandProtocol {
+    public typealias Options = UpgradeOptions
+    public let verb = "upgrade"
+    public let function = "Upgrade outdated apps from the Mac App Store"
+
+    public init() {}
+
+    public func run(_ options: Options) -> Result<(), MASError> {
         let updateController = CKUpdateController.shared()
-        
+
         let updates: [CKUpdate]
         let apps = options.apps
         if apps.count > 0 {
@@ -75,14 +77,14 @@ struct UpgradeCommand: CommandProtocol {
     }
 }
 
-struct UpgradeOptions: OptionsProtocol {
+public struct UpgradeOptions: OptionsProtocol {
     let apps: [String]
     
     static func create(_ apps: [String]) -> UpgradeOptions {
         return UpgradeOptions(apps: apps)
     }
     
-    static func evaluate(_ m: CommandMode) -> Result<UpgradeOptions, CommandantError<MASError>> {
+    public static func evaluate(_ m: CommandMode) -> Result<UpgradeOptions, CommandantError<MASError>> {
         return create
             <*> m <| Argument(defaultValue: [], usage: "app(s) to upgrade")
     }
diff --git a/App/Commands/Version.swift b/App/Commands/Version.swift
index 2bb168e..d3d4323 100644
--- a/App/Commands/Version.swift
+++ b/App/Commands/Version.swift
@@ -9,12 +9,14 @@
 import Commandant
 import Result
 
-struct VersionCommand: CommandProtocol {
-    typealias Options = NoOptions<MASError>
-    let verb = "version"
-    let function = "Print version number"
-    
-    func run(_ options: Options) -> Result<(), MASError> {
+public struct VersionCommand: CommandProtocol {
+    public typealias Options = NoOptions<MASError>
+    public let verb = "version"
+    public let function = "Print version number"
+
+    public init() {}
+
+    public func run(_ options: Options) -> Result<(), MASError> {
         let plist = Bundle.main.infoDictionary
         if let versionString = plist?["CFBundleShortVersionString"] {
             print(versionString)
diff --git a/App/MASError.swift b/App/MASError.swift
index 840e8c6..b2f87ee 100644
--- a/App/MASError.swift
+++ b/App/MASError.swift
@@ -8,7 +8,7 @@
 
 import Foundation
 
-enum MASError: Error, CustomStringConvertible {
+public enum MASError: Error, CustomStringConvertible {
     case notSignedIn
     case signInDisabled
     case signInFailed(error: NSError?)
@@ -22,7 +22,7 @@ enum MASError: Error, CustomStringConvertible {
     case searchFailed
     case noSearchResultsFound
 
-    var description: String {
+    public var description: String {
         switch self {
         case .notSignedIn:
             return "Not signed in"
diff --git a/App/Utilities.swift b/App/Utilities.swift
index 799b4a1..f6c75aa 100644
--- a/App/Utilities.swift
+++ b/App/Utilities.swift
@@ -32,7 +32,7 @@ func printWarning(_ message: String) {
     print("\(csi)4;33mWarning:\(csi)0m \(message)")
 }
 
-func printError(_ message: String) {
+public func printError(_ message: String) {
     guard isatty(fileno(stdout)) != 0 else {
         print("Warning: \(message)")
         return